rikroots

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421.
by rikroots 4y ago
I must be very old. I still put my name in the footer of all my personal websites. Which reminds me: must update the copyright year in those footers!
422.
by rikroots 4y ago
TIL that in certain browsers you can play a video in an <img> element ... and that disappoints me because I always thought <img> was supposed to be used for static images, while <video>, <svg> and <canvas> elem
423.
by rikroots 4y ago
Quote from the article: "From time to time, I consider shielding my website with Cloudflare's services. I resist the temptation, because I strongly suspect that, despite Cloudflare's current good intentions, in the long-run,
424.
by rikroots 5y ago
> Why not include your street address on a formal document like a résumé, anyway? Sadly we live in a world where people still run the risk of being judged on the basis of the neighbourhood they live in, rather than the skills they can br
425.
by rikroots 5y ago
I looked at the possibilities of porting parts of my 2D canvas library's code base over to Wasm (using either AssemblyScript or Rust) last winter. My thinking was that maybe some of the more intense calculation stuff - animating text a
426.
How I test Scrawl-canvas, my JavaScript library for the HTML canvas element(scrawl-v8.rikweb.org.uk)
2 points by rikroots 5y ago|0 comments
427.
by rikroots 5y ago
Thank you for introducing me to the world of tulpas. As an adult, I've written a couple of novels. Reading a few of the reddit tulpa-related posts I got the feeling that some of the characters I generated had tulpa-like qualities - in
428.
by rikroots 5y ago
The main expectation you need to manage (in my opinion) is your own. Building the project, or product, is the fun part of the work. The other part of the work is promoting the work to your target audiences. Even for a code project on an MIT
429.
by rikroots 5y ago
The first time I came across the spotlight effect was in a Facebook game - I can't remember the game's name, but it was very much like Mystery Manor[1]. Kudos to the OP for coding up the feature in CSS. The effect is fairly easy t
430.
by rikroots 5y ago
Rather than bang on about my JS canvas library's site, I'll post a link to my personal poetry website - https://rikverse2020.rikweb.org.uk/ My aims for the site were: 1. Put the poems first (I hate poet sites that
431.
by rikroots 5y ago
Release 99.0.4844.84 has borked my JS canvas library. Currently working on a fix - it was my misunderstanding of the purpose of the CanvasAPI willReadFrequently flag that left the library open to a severe speed degradation. In my defence th
432.
by rikroots 5y ago
Concerning the inaccessibility of the <canvas> element, I've done a lot of work with my JS canvas library[1] to try and make canvas-based infographics, animations, etc more accessible[2]. I've also written up a lesson on how
433.
by rikroots 5y ago
Oh, nicely done! Trying to code up cellular automata simulations are pretty much guaranteed to push my brains through my nostrils - I've never progressed far beyond classic Conway. Your CAM6 library[1] may be about to steal my weekend
434.
by rikroots 5y ago
> makes your smooth 24 bit procedurally generated gradients look like they've been error-diffusion dithered to an 8 bit web safe color palette Do you mean the gradient's output should look like it's been put through a riso
435.
by rikroots 5y ago
> We would really rather people use WebGL if you want fast/efficient filters. This one made me laugh. Yes, WebGL excels at pixel manipulations but it is possible to write fast and efficient filters to work in the 2D canvas environme
436.
by rikroots 5y ago
Have you tried ctx.imageSmoothingEnabled (boolean) and ctx.imageSmoothingQuality (string: 'low' | 'medium' | 'high')? From my experiments the iSE value seems to be respected across modern browsers, but the iSQ
437.
by rikroots 5y ago
I, too, had to look it up. This is about adding a (pseudo) perspective effect to the 2D canvas yes? There is an open issue in the whatwg/html repo[1] asking for this functionality - I have no idea whether the request will be taken forw
438.
by rikroots 5y ago
The CSS Painting API[1] shows some promise in this area - it adds a (restricted) canvas to elements which always maintains the same size as the div element it's attached to. [1] https://developer.mozilla.org/en-US/
439.
by rikroots 5y ago
I'll add some of my thoughts about this article's take on latest Canvas2D developments. 1. ctx.roundRect() - is a nice addition to the 2D stable of shapes, fitting alongside other recent additions like ctx.ellipse(). I was a littl
440.
It's always been you, Canvas2D(developer.chrome.com)
447 points by rikroots 5y ago|243 comments
441.
by rikroots 5y ago
Many thanks for the feedback. I've added a warning note to the demo so others who stumble across it will be aware it uses the device camera, and needs user permission before anything shows on the canvas.
442.
by rikroots 5y ago
Did the browser ask for your permission to use your device's web cam?
443.
by rikroots 5y ago
OP: Given that I'm doing this in a 2D canvas - with no help from web workers, webgl, wasm, etc - I'm quite impressed to get a 10fps output on my local machine. The reduce-palette filter is good for black-white and grayscale dither
444.
Show HN: Dithering a real-time video media stream(codepen.io)
1 points by rikroots 5y ago|6 comments
445.
by rikroots 5y ago
I've never written a programming language. I have built a number of constructed languages[1] over the past few decades, which is an equally selfish (and thankless) task. Less tangentially, I've worked for the past 8 years on build
446.
by rikroots 5y ago
I can confirm this with a couple of Codepen demos. MediaPipe's selfie-segmentation model[1] seems to give much better results than TensorFlow's body-pix model[2] (which is the model I most often see talked about for this sort of b
447.
Show HN: Create your own DIY art videos in the browser(codepen.io)
1 points by rikroots 5y ago|0 comments
448.
by rikroots 5y ago
Rather than spam yet another link to my Javascript library, I'll instead link to the website of a hobby I've invested over 30 years - writing poetry[1]. There's no money in poetry, and yet the world of poetry continues to ins
449.
by rikroots 5y ago
... And to be honest, I'm not convinced it's been worth my effort. I have no plans to rewrite the library itself in TS, so there's no direct benefit for me as I continue to maintain it. I do hope others find the definitions u
450.
Show HN: I finally added a TS definitions file to my JavaScript canvas library(github.com)
1 points by rikroots 5y ago|1 comments

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